package com.yuhao.common.strcount;

import java.util.HashSet;
import java.util.Set;

public class MainTest {

    public static void main(String[] args) {
        test();
    }

    public static void test() {
        String s = "aaa";
        String b = "aaa";
        Set<String> set = new HashSet<>();
        set.add(s);
        set.add(b);
        set.stream().forEach(System.out::println);
    }
}
